app.locale = {
	'strength' : 'Strength'
};

/**
 * Extending app with _ function
 * This function searches locale cache for translation of given string
 * If there is no match, then the value itself will be used
 *
 * @param str String to translate
 * @return Translated string or input value
 */
app._ = function(str) {
	return this.locale[str] || str;
}